Re: [PATCH bpf-next v7 3/6] selftests/bpf: netns_new() and netns_free() helpers.

[Stanislav Fomichev <sdf@xxxxxxxxxxx>]

On 08/09, Kui-Feng Lee wrote:
> netns_new()/netns_free() create/delete network namespaces. They support the
> option '-m' of test_progs to start/stop traffic monitor for the network
> namespace being created for matched tests.
> 
> Signed-off-by: Kui-Feng Lee <thinker.li@xxxxxxxxx>
> ---
>  tools/testing/selftests/bpf/network_helpers.c | 52 +++++++++++
>  tools/testing/selftests/bpf/network_helpers.h |  2 +
>  tools/testing/selftests/bpf/test_progs.c      | 88 +++++++++++++++++++
>  tools/testing/selftests/bpf/test_progs.h      |  4 +
>  4 files changed, 146 insertions(+)
> 
> diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
> index 47fc37aa13a5..c896ae365fe3 100644
> --- a/tools/testing/selftests/bpf/network_helpers.c
> +++ b/tools/testing/selftests/bpf/network_helpers.c
> @@ -446,6 +446,58 @@ char *ping_command(int family)
>  	return "ping";
>  }
>  
> +int remove_netns(const char *name);

Nit: if you end up with another respin, might just move remove_netns
implementation here instead of a forward decl.